Home / 20,127.45-30,190.23-9,589.80

Finding the Fourth Proportional to 20,127.45, 30,190.23 and 9,589.80

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Solution

The fourth proportional to 20,127.45, 30,190.23 and 9,589.80 is: 14,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.45 : 30,190.23 = 9,589.80 : x
  2. Step 2: Convert to fraction form
    20,127.45/30,190.23 = 9,589.80/x
  3. Step 3: Cross multiply
    20,127.45x = 30,190.23 × 9,589.80
  4. Step 4: Simplify right side
    20,127.45x = 289,518,267.65
  5. Step 5: Solve for x
    x = 289,518,267.65/20,127.45
  6. Step 6: Final answer
    x = 14,384.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.